ES473021A1 - Time division telecommunication system - Google Patents
Time division telecommunication systemInfo
- Publication number
- ES473021A1 ES473021A1 ES473021A ES473021A ES473021A1 ES 473021 A1 ES473021 A1 ES 473021A1 ES 473021 A ES473021 A ES 473021A ES 473021 A ES473021 A ES 473021A ES 473021 A1 ES473021 A1 ES 473021A1
- Authority
- ES
- Spain
- Prior art keywords
- processor
- module
- control
- time division
- scanner driver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0407—Selecting arrangements for multiplex systems for time-division multiplexing using a stored programme control
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Time-Division Multiplex Systems (AREA)
- Exchange Systems With Centralized Control (AREA)
- Multi Processors (AREA)
Abstract
A telecommunications system which is capable of implementation in many configurations. The simplest and smallest configuration is that of a single processor-controlled module or unit using time division switching. Within a module, a processor and its attendant memory provide program memory and control the functioning of an automatic scanner driver, the automatic scanner driver interfacing between the processor and the system terminal circuits. In addition the automatic scanner driver has capability of storing temporary information during call processing through a time division switching network. For configuring larger systems, plural modular units are combined, the units being combined with control elements common to the system such as a control processor, including memory and a processor to module interface and module to module interface. The common elements act to control the feeding of information between modules. In this way, one family of systems may provide systems of any desired size from small (50 lines) to many thousand lines.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/829,669 US4127742A (en) | 1977-09-01 | 1977-09-01 | Time division telecommunication system |
Publications (1)
Publication Number | Publication Date |
---|---|
ES473021A1 true ES473021A1 (en) | 1979-11-01 |
Family
ID=25255194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES473021A Expired ES473021A1 (en) | 1977-09-01 | 1978-09-01 | Time division telecommunication system |
Country Status (12)
Country | Link |
---|---|
US (1) | US4127742A (en) |
JP (1) | JPS5496307A (en) |
BE (1) | BE870101A (en) |
BR (1) | BR7805530A (en) |
CA (1) | CA1103340A (en) |
DE (1) | DE2838142C2 (en) |
DK (1) | DK380478A (en) |
ES (1) | ES473021A1 (en) |
FR (1) | FR2402373A1 (en) |
GB (1) | GB2003702B (en) |
NL (1) | NL7808869A (en) |
SE (1) | SE7809170L (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2834938A1 (en) * | 1978-08-09 | 1980-02-21 | Siemens Ag | INDIRECTLY CONTROLLED SWITCHING SYSTEM, ESPECIALLY TELEPHONE SWITCHING SYSTEM EQUIPPED WITH TIME CHANNEL COUPLERS |
DE2834916A1 (en) * | 1978-08-09 | 1980-02-21 | Siemens Ag | INDIRECTLY CONTROLLED SWITCHING SYSTEM, ESPECIALLY TELEPHONE SWITCHING SYSTEM EQUIPPED WITH TIME CHANNEL COUPLERS |
DE2834918A1 (en) * | 1978-08-09 | 1980-02-21 | Siemens Ag | INDIRECTLY CONTROLLED SWITCHING SYSTEM, ESPECIALLY TELEPHONE SWITCHING SYSTEM EQUIPPED WITH TIME CHANNEL COUPLERS |
FR2455837A1 (en) * | 1979-05-04 | 1980-11-28 | Cit Alcatel | CONTROL LOGIC FOR A MULTIPLEX CONNECTION UNIT IN A TIME SWITCHING CENTER |
IT1128291B (en) * | 1980-05-13 | 1986-05-28 | Cselt Centro Studi Lab Telecom | PCM ELEMENTARY SWITCHING MATRIX |
GB2083319B (en) * | 1980-06-25 | 1984-03-28 | Plessey Co Ltd | Digital switching module |
DE3901433A1 (en) * | 1989-01-19 | 1990-08-02 | Telefonbau & Normalzeit Gmbh | METHOD FOR CONTROLLING THE CONNECTION IN COMMUNICATION SWITCHING SYSTEMS |
JPH02218290A (en) * | 1989-02-17 | 1990-08-30 | Nec Corp | Digital exchange |
DE3906934A1 (en) * | 1989-03-03 | 1990-09-13 | Telefonbau & Normalzeit Gmbh | Method for controlling cleardown operations in communications switching systems |
FR2669496B1 (en) * | 1990-11-21 | 1995-03-31 | Alcatel Business Systems | TIME SWITCH WITH EXPLODED ARCHITECTURE AND CONNECTION MODULE FOR THE ESTABLISHMENT OF SUCH A SWITCH. |
DE4423496A1 (en) * | 1994-07-05 | 1996-01-11 | Philips Patentverwaltung | Switching device with direct memory access control |
US5610912A (en) * | 1994-08-01 | 1997-03-11 | British Telecommunications Public Limited Company | Switching in a telecommunications service node |
JPH08205211A (en) * | 1995-01-25 | 1996-08-09 | Nec Corp | Time division multiplexed time switch circuit |
US5790072A (en) * | 1995-10-02 | 1998-08-04 | Lucent Technologies, Inc. | Method and apparatus for reducing data delay within a multi-channel shared-circuit date processing environment |
KR100233458B1 (en) * | 1997-05-19 | 1999-12-01 | 윤종용 | Duplexing method for remote multiple subscriber |
US6647440B1 (en) * | 1999-09-15 | 2003-11-11 | Koninklijke Philips Electronics N.V. | End-of-message handling and interrupt generation in a CAN module providing hardware assembly of multi-frame CAN messages |
US7434106B2 (en) | 2002-07-31 | 2008-10-07 | Seagate Technology Llc | Reference clock failure detection on serial interfaces |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3778555A (en) * | 1971-07-19 | 1973-12-11 | Digital Telephone Systems Inc | Telephone subscriber line system intra call apparatus and method |
CH543208A (en) * | 1972-03-27 | 1973-10-15 | Generaldirektion Ptt Hasler Ag | Procedure to protect against incorrect connections in telecommunications switching systems |
CH541266A (en) * | 1972-05-25 | 1973-08-31 | Generaldirektion Ptt Hasler Ag | Method for operating a telecommunications switching system |
FR2328349A1 (en) * | 1973-03-01 | 1977-05-13 | Ibm France | TIME DIVISION MULTIPLEX SWITCHING SYSTEM |
US3912873A (en) * | 1974-01-17 | 1975-10-14 | North Electric Co | Multiple fault tolerant digital switching system for an automatic telephone system |
US4021619A (en) * | 1974-06-10 | 1977-05-03 | The Post Office | Improved digital telephone and switching system employing time division multiplex pulse code modulation |
US4001514A (en) * | 1974-12-09 | 1977-01-04 | Itt Canada, Limited | Subscriber digital multiplexing system with time division concentration |
US4021618A (en) * | 1975-04-28 | 1977-05-03 | International Standard Electric Corporation | Intra link calling within a subscriber digital system |
-
1977
- 1977-09-01 US US05/829,669 patent/US4127742A/en not_active Expired - Lifetime
-
1978
- 1978-08-17 GB GB7833719A patent/GB2003702B/en not_active Expired
- 1978-08-25 BR BR7805530A patent/BR7805530A/en unknown
- 1978-08-29 NL NL7808869A patent/NL7808869A/en not_active Application Discontinuation
- 1978-08-29 DK DK380478A patent/DK380478A/en not_active Application Discontinuation
- 1978-08-31 SE SE7809170A patent/SE7809170L/en unknown
- 1978-08-31 CA CA310,458A patent/CA1103340A/en not_active Expired
- 1978-08-31 BE BE2057246A patent/BE870101A/en not_active IP Right Cessation
- 1978-09-01 ES ES473021A patent/ES473021A1/en not_active Expired
- 1978-09-01 FR FR7825258A patent/FR2402373A1/en not_active Withdrawn
- 1978-09-01 JP JP10633678A patent/JPS5496307A/en active Pending
- 1978-09-01 DE DE2838142A patent/DE2838142C2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DK380478A (en) | 1979-03-02 |
SE7809170L (en) | 1980-03-01 |
NL7808869A (en) | 1979-03-05 |
BR7805530A (en) | 1979-04-10 |
DE2838142A1 (en) | 1979-03-15 |
DE2838142C2 (en) | 1983-08-25 |
BE870101A (en) | 1979-02-28 |
US4127742A (en) | 1978-11-28 |
CA1103340A (en) | 1981-06-16 |
JPS5496307A (en) | 1979-07-30 |
FR2402373A1 (en) | 1979-03-30 |
GB2003702B (en) | 1982-01-20 |
GB2003702A (en) | 1979-03-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES473021A1 (en) | Time division telecommunication system | |
ES446868A1 (en) | Apparatus for custom calling features in a telephone system | |
GB1021817A (en) | P.b.x. group hunting for automatic telecommunication | |
EP0009293A1 (en) | Circuit for connecting, at one time, only one of a number of telephone sets to a subscriber's line | |
ES2142924T3 (en) | MODULAR SUBSCRIBER DEVICE. | |
JPS5654158A (en) | Control system for call waiting | |
GB1471364A (en) | Electronic telephone system | |
IT7820272A0 (en) | CIRCUIT ARRANGEMENT FOR TELECOMMUNICATIONS SWITCHBOARD SYSTEMS, SPECIFICALLY FOR TELEPHONE SWITCHBOARD SYSTEMS, WITH COMMON CONTROL AND INDIVIDUAL CONNECTION DEVICES. | |
IT7830438A0 (en) | CIRCUIT ARRANGEMENT FOR SHORT SELECTION IN A TELECOMMUNICATION SWITCHING SYSTEM, ESPECIALLY IN A TELEPHONE SWITCHING SYSTEM. | |
GR3019640T3 (en) | Circuit arrangement for a central controlled telecommunication exchange, especially a PCM telephone exchange, with a central coordination processor and decentralized terminal groups with group processors | |
EP0141984A3 (en) | Multiprocessor central control unit for a telephone switching system | |
AU651202B2 (en) | A key telephone system | |
JPS56132895A (en) | Automatic code call system | |
GB1147809A (en) | Circuit arrangement for a telecommunication, particularly telephone exchange system | |
EP0380951A3 (en) | Circuit arrangement for communication exchanges, especially telephone exchanges, with remote switches, distributed switching and central switching arrangements | |
GB1480221A (en) | Telephone intercommunication systems | |
JPS56141645A (en) | Communication control system | |
IT7829395A0 (en) | CIRCUIT ARRANGEMENT FOR TELECOMMUNICATION SWITCHING SYSTEMS, ESPECIALLY FOR TELEPHONE SWITCHING SYSTEMS, WITH OPERATING STATE MEMORIES AND REPRODUCTION EQUIPMENT. | |
GB1101725A (en) | Improvements in or relating to telecommunications exchange systems | |
US2717926A (en) | Common control arrangement in telephone systems | |
JPS6460129A (en) | Subscriber data loading system for communication control unit | |
JPS5412235A (en) | Connection switching unit of data terminal system | |
SE9300895L (en) | Device in a selector | |
JPS57111764A (en) | Count-up device | |
JPS5497306A (en) | Connection system for b board |